A JFK Airport security supervisor who was caught dozing on duty more than two years ago was ousted from his position yesterday — after The Post revealed he had recently been embroiled in a security breach at the airport, officials said.

Ronald Denig was caught sleeping on the job in December 2010 along with nine guards at the airport. The guards were fired, but Denig received only a five-day suspension.

Denig got ensnared in a security breach late last month and was spared again — until yesterday.

That breach involved whistleblower Stephen Jackson, a former security supervisor who was fired because he let a co-worker into a restricted area.

Jackson said he allowed the man in after getting Denig’s approval. Denig denies giving permission.

Yesterday, the Port Authority ordered its JFK security firm, FJC Security, to boot Denig.

Denig denies any wrongdoing.